, 23mm (+1.3mm) bar would be about 25-35% (if it is solid) stiffer than the OEM 21.7mm. Stiffness of the bar is proportional to the diameter in forth
power. I can see 25% stiffer swaybar working.
If you've also swapped the front bar - that would be a totally different story. Because stiffness distribution/ratio between the front and rear bars matters the most.
, thanks for the warm welcome and being judgemental, I appreciate it. It certainly helps to have an open and fruitful discussion.
That aside, I'm puzzled myself due to the overwhelming number of positive reviews about that same swaybar. And I do trust 034 as a tuning company in general.
On other hand I saw youtube reviews prizing the bar of making the car handling and ride quality better while driving straight or almost straight (on the highway).
I doubt installation was an issue since there are no two ways to get the rear swaybar installed on our cars. My car setup is completely stock in suspension department and in a good shape. Tires were one year old PS4S and they were not swapped for the 034 swaybar test.
I probably had to turn ESP off in a safe environment to confirm that the rear will indeed step out on fairly trivial turns rather than it being ESP glitch or anything. It certainly did feel that the rear got overly loose. It was indeed night and day difference.